Cercopithecus preussi Matschie, 1898 . Sitzber. Ges. Naturf. Fr. Berlin, 76.

TYPE LOCALITY: Cameroon, Victoria .

DISTRIBUTION: Region of Mt. Cameroon; Bioko (Equatorial Guinea).

STATUS: CITES - Appendix II; IUCN - Endangered.

SYNONYMS: crossi, insularis .

COMMENTS: Not a subspecies of C. Ihoesti.